unexpected find..

[sjbsuperman1425]

I recently took the insurance off the car for the winter and started taking the intake manifold off the other day to take out the butterfly valve, install the KADE TB, and simply the cooling lines underneath the manifold.

Upon inspection, i realized there was ALOT of gunk build up around the valves, so instead of getting NIStune and a wideband, it looks like i'll be getting some ARP studs, replacing the head gasket, and getting the head milled and cleaned up. (Pics will be soon)

Just a few questions though, in the "oil catch can thread" it says to use a SR20 baffle box between the rear port on the intake valve cover and the pipe that it connects too underneath it correct? and I can use a regular catch can with steel wool in place of that?

Also, the ARP studs i want are the 202-4302 and NOT the 202-4702. I have a JDM CA18DET.

Float, I think i remember you saying something about thermo-gaskets for the intake manifold somewhere awhile back, any info on that or if I could pick some up?

Woah sorry for the story guys lol

[float_6969]

The SR20 baffle will help, but the CA just doesn't have an easy way to deal with it's blowby gasses. Honestly, if I had a stock CA, and was planning for a catch can, I'd actually get 2 and put one inline of each valve cover. That would actually be the least complicated.

Yea, you want the 202-4302.

The company is http://www.gizzmousa.com

[sjbsuperman1425]

thanks for the site and ARP confirmation Ryan.

When I was trying to get the rear oil line off the valve cover (one that points down) i basically destroyed it, so instead of leaving it stock and getting an SR20 baffle, can I use a catch can with steel wool there?

[float_6969]

Yes, but that hose isn't the only route for crankcase gasses to pass into the head, so you're still going to need 2 more catch can's or do something else different with the PCV hoses. .

What exactly did you destroy?

[sjbsuperman1425]

just the piece of hose that goes from the valve cover to the 90* bend. I planned on getting two circuit sport mini catch cans, but might leave those stock and get the thermal gaskets instead (haven't decided).

I'm doing alot that probably didn't need to be done (and started with removing the butterflies) but i think it'll be worth it in the long run.

[bentvalves]

a can with steel wool equalizing crankcase/head pressure under the intake manifold is not going to do anything for you, forget about it.

either modified SR20 baffled to high heavans equalizing chamber or bust.

implementing this can under the CA's intake plenum will resolve 80% of the ca's blowby issues.

[sjbsuperman1425]

alright, looks like i'll be getting another piece of hose to replace the one i messed up. Thanks for the info ks13

heres what i got planned:-Felpro Head Gasket, Exhaust Manifold Gasket, and turbo inlet and outlet gaskets.-Thermal Intake Manifold Gasket-ARP head studs-new idler/tensioner pulley-head cleaning

Anybody have any other suggestions while the head is off? Im getting rid of the maze of coolant lines under the manifold and using a reducer for the turbo line (as per Driftopia). Does anybody know any signs as to if the tensioner/idler pulley's are bad? Its $90 for both of them from local parts store and im willing to spend it, but only if i have too.

[float_6969]

either modified SR20 baffled to high heavans equalizing chamber or bust.

implementing this can under the CA's intake plenum will resolve 80% of the ca's blowby issues.

Please explain

[Liquid_Neon]

You know thats funny... my fwd ca doesnt have two pcv hoses, just one from the exhuast head and it pipes to a piece that sits directly behind the cam gears and between the cams, that acts as the pcv for the intake side... didnt relize have the two would be a pita.

[sjbsuperman1425]

well so far i've bought the intake manifold and exhaust manifold gaskets and got the butterfly valve bars out and the holes all taped and caped. I'm going to be starting work on getting the exhaust and head off this weekend. here are some pics:

before cleaning

after cleaning

i used brake cleaner and a cloth to clean it up. worked very well. But the inside of the upper manifold (below) is fairly filthy and i will probalby only be able to clean the runners out, not the whole thing



KADE Throttle Body, still need to port it.

[bentvalves]

Please explain

I've explained it in jbsupermans other catch can thread. With pictures im pretty sure. The can needs modifying because the inlet/outlets are pointed in the wrong direction. This can will allow your crankcase to breathe without filling the head with oil.

Run an sr20 hard without this thing behind the exhaust manifold, and the SR will become a magical blowby monster as well. Implement it, and you will fill catch cans with residue. Same thing goes for the CA, you just gotta make room for it under intake plenum, modify inlet/outlet, and run it upsidown and you are golden

[sjbsuperman1425]

yea im just gonna leave that hose alone for now and run it like stock.

does anybody know any good ways to clean the inside of the upper manifold? I do have access to a big washer type thing, sort of like a hot tank, but its not a hot tank (if that makes since?).

[sjbsuperman1425]

over the weekend, my friend and i got the head off. The water jackets in the head gasket were really corroded and plugged up and the valves and intake and exhaust runners were pretty dirty, so its at the Machine Shop right now and will be all cleaned and decked by Thursday for less than $45 (whats the going price usually?) The guy did my friends RB25 head so I'm confident.

[sjbsuperman1425]

Here are some pics from a week or two ago. I've got the ARP's on the way (backordered from Summit), and have everything else in the other room ha. I have the head in the garage but have yet to take pictures as of yet. Only things left to do are finish porting the throttle opening for the KA throttle body. Enjoy.

exhaust

Intake





YAY!!!

[sjbsuperman1425]

Exhaust

Intake